<template>
  <view v-if="goods_info.goods_name" class="goods-detail-container">
    <!-- 轮播图 -->
   <swiper :indicator-dots="true" :autoplay="true" :interval="3000" :duration="1000" :circular="true">
     <swiper-item v-for="(item, i) in goods_info.pics" :key="item.goods_id">
         <image :src="item.pics_big" @click="preview(i)"></image>
     </swiper-item>
   </swiper>
   
   <!-- 商品信息区域 -->
   <view class="goods-info-box">
     <!-- 商品的价格 -->
     <view class="price">
       ￥{{goods_info.goods_price}}
     </view>
     <!-- 商品信息主题区域 -->
     <view class="goods-info-body">
       <!-- 商品的名字 -->
       <view class="goods-name">
         {{ goods_info.goods_name}}
       </view>
       <!-- 收藏 -->
       <view class="favi">
         <uni-icons type="star" size="18" color="gray"></uni-icons>
         <text>收藏</text>
       </view>
     </view>
     <!-- 运费 -->
     <view class="yf">
       快递：免运费
     </view>
   </view>
    <rich-text :nodes="goods_info.goods_introduce"></rich-text>
    <!-- 商品导航区 -->
    <view class="goods_nav">
      <uni-goods-nav :fill="true"  :options="options" :buttonGroup="buttonGroup"  @click="onClick" @buttonClick="buttonClick" />
    </view>
  </view>
</template>

<script>
  import { mapState,mapMutations,mapGetters } from 'vuex'
  export default {
    computed: {
      ...mapState('m_cart',[]),
      ...mapGetters('m_cart',['total'])
    },
    watch:{
      total:{
        handler(newVal){
          let findResult=this.options.find( x => x.text === '购物车')
          if(findResult){
            findResult.info=newVal
          }
        },
        immediate:true
      }
    }
    ,
    data() {
      return {
      id:0,
      goods_info:{
        
      },
       options: [{
      			icon: 'shop',
      			text: '店铺',
      			infoBackgroundColor:'#007aff',
      			infoColor:"red"
      		}, {
      			icon: 'cart',
      			text: '购物车',
      			info: 0
      		}],
      	    buttonGroup: [{
      	      text: '加入购物车',
      	      backgroundColor: '#ff0000',
      	      color: '#fff'
      	    },
      	    {
      	      text: '立即购买',
      	      backgroundColor: '#ffa200',
      	      color: '#fff'
      	    }
      	    ]
      }
    },
    onLoad:function(option){
      this.id=option.goods_id
      this.getGoodsDetail(this.id)
    },
    methods:{
      ...mapMutations('m_cart',['addToCart'])
      ,
      async getGoodsDetail(goods_id){
        const {data: res} = await uni.$http.get('/api/public/v1/goods/detail',{goods_id})
        if(res.meta.status !== 200) return uni.$showMsg()
        
        res.message.goods_introduce= res.message.goods_introduce.replace(/<img /g,'<img style="display: block;"').replace(/webp/g, 'jpg')
        this.goods_info = res.message
      },
      // 轮播图大图预览
      preview(goods_id){
       uni.previewImage({
         current: goods_id,
         urls: this.goods_info.pics.map(x => x.pics_big)
       })
      },
      onClick(e){
        if(e.content.text === '购物车'){
          uni.switchTab({
            url: '/pages/cart/cart'
          })
        }
      },
      buttonClick(e){
        if(e.content.text === '加入购物车'){
          //组织商品的信息对象{ goods_id, goods_name, goods_price, goods_count, goods_small_logo, goods_state }
          const goods = {
            goods_id: this.goods_info.goods_id,
            goods_name: this.goods_info.goods_name,
            goods_price:this.goods_info.goods_price,
            goods_count: this.goods_info.goods_count,
            goods_small_logo: this.goods_info.goods_small_logo,
            goods_state: true
          }
          //调用addToCart方法
          this.addToCart(goods)
        }
      }
    }
  }
</script>

<style lang="scss">
swiper{
  height: 750rpx;
  image{
    width: 100%;
    height: 100%;
  }
}
.goods-info-box{
  padding: 10px;
  padding-right: 0;
  .price{
    color: #c00000;
    font-size: 18px;
    margin: 10px 0;
  }
  .goods-info-body{
    display: flex;
    justify-content: space-between;
    .goods-name{
      font-size: 13px;
      margin-right: 10px;
    }
    .favi{
      width: 120px;
      font-size: 12px;
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      border-left: 1px solid #efefef;
      color: gray;
    }
    .yf{
      font-size: 12px;
      color: gray;
      margin: 10px 0;
    }
  }
  .goods_nav{
    position: fixed;
    bottom: 0px;
    left: 0px;
    width: 100%;
  }
  .goods-detail-container{
    padding-bottom: 50px;
  }
}
</style>
